package com.ruoyi.common.security.utils;

import com.ruoyi.common.core.constant.SecurityConstants;
import com.ruoyi.common.core.constant.TokenConstants;
import com.ruoyi.common.core.context.SecurityContextHolder;
import com.ruoyi.common.core.utils.ServletUtils;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.system.api.model.LoginUser;
import javax.servlet.http.HttpServletRequest;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

/**
 * 权限获取工具类
 *
 * @author ruoyi
 */
public class SecurityUtils {
  /** 获取用户ID */
  public static Long getUserId() {
    return SecurityContextHolder.getUserId();
  }

  /** 获取用户名称 */
  public static String getUsername() {
    return SecurityContextHolder.getUserName();
  }

  /** 获取用户key */
  public static String getUserKey() {
    return SecurityContextHolder.getUserKey();
  }

  /** 获取登录用户信息 */
  public static LoginUser getLoginUser() {
    return SecurityContextHolder.get(SecurityConstants.LOGIN_USER, LoginUser.class);
  }

  /** 获取请求token */
  public static String getToken() {
    return getToken(ServletUtils.getRequest());
  }

  /** 根据request获取请求token */
  public static String getToken(HttpServletRequest request) {
    // 从header获取token标识
    String token = request.getHeader(TokenConstants.AUTHENTICATION);
    return replaceTokenPrefix(token);
  }

  /** 裁剪token前缀 */
  public static String replaceTokenPrefix(String token) {
    // 如果前端设置了令牌前缀，则裁剪掉前缀
    if (StringUtils.isNotEmpty(token) && token.startsWith(TokenConstants.PREFIX)) {
      token = token.replaceFirst(TokenConstants.PREFIX, "");
    }
    return token;
  }

  /**
   * 是否为管理员
   *
   * @param userId 用户ID
   * @return 结果
   */
  public static boolean isAdmin(Long userId) {
    return userId != null && 1L == userId;
  }

  /**
   * 生成BCryptPasswordEncoder密码
   *
   * @param password 密码
   * @return 加密字符串
   */
  public static String encryptPassword(String password) {
    BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
    return passwordEncoder.encode(password);
  }

  /**
   * 判断密码是否相同
   *
   * @param rawPassword 真实密码
   * @param encodedPassword 加密后字符
   * @return 结果
   */
  public static boolean matchesPassword(String rawPassword, String encodedPassword) {
    BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
    return passwordEncoder.matches(rawPassword, encodedPassword);
  }
}
